An open question: I tried to make a voltage divider with an ebay pot, but it was too noisy for a stable reading. The ADC value bounced around.
Yes, I know, a cheap pot, and there will no doubt be the "Ford vs. Chevy" posts about the best pots.
But I'd rather it were NOT dependent on the pot, or if someone can tell me a way to quiet the pot down. One could put a low pass filter on the pot, but that seems a band-aid approach.
So is there a possibility of an led-ldr IC driven by a pot?
Or will shelling out more money solve this? (a better pot)
or a low pass filter on the pot?
There's gotta be a pony in here somewhere!
Thanks in advance for your thoughts.
Yes, I know, a cheap pot, and there will no doubt be the "Ford vs. Chevy" posts about the best pots.
But I'd rather it were NOT dependent on the pot, or if someone can tell me a way to quiet the pot down. One could put a low pass filter on the pot, but that seems a band-aid approach.
So is there a possibility of an led-ldr IC driven by a pot?
Or will shelling out more money solve this? (a better pot)
or a low pass filter on the pot?
There's gotta be a pony in here somewhere!
Thanks in advance for your thoughts.